CN101086436A - Shell-and-tube heat exchanger with sliding guiding support and inner expansion joint - Google Patents
Shell-and-tube heat exchanger with sliding guiding support and inner expansion joint Download PDFInfo
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- CN101086436A CN101086436A CN 200710043304 CN200710043304A CN101086436A CN 101086436 A CN101086436 A CN 101086436A CN 200710043304 CN200710043304 CN 200710043304 CN 200710043304 A CN200710043304 A CN 200710043304A CN 101086436 A CN101086436 A CN 101086436A
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Abstract
The invention discloses a shell typed heat exchanger with sliding conductive bearing piece and inner bulking node, which comprises the following parts: case, tube bank, fixing pipe board, floating pipe board, roll end, bulking node and sliding conductive bearing piece, wherein one end of tube bank connects the fixing pipe board and the other end connects the floating pipe board; the fixing pipe board is fixed at one end of the case; the sliding conductive bearing piece is supported under the floating pipe board; the roll end is set at two ends of case; one end of bulking node connects the inner wall of the roll end and the other end connects the floating pipe board; two ends of case has inlet and outlet of fluid A; the inlet and outlet of fluid are set on the roll end. The invention avoids leakage between tube pass and shell pass to ensure the free extension of tube pass of heat exchanger, which is fit for the occasion of heat exchange and other leaking influence between reacting product and reacting material with high reliability and manufacturing benefit.
Description
Technical field
The present invention relates to a kind of shell-and-tube heat exchanger.
Background technology
In chemical industry and petrochemical industry, the application of heat exchanger is very extensive, is indispensable process equipment commonly used, also is seen everywhere in daily life.According to statistics, heat exchanger accounts for about 40% of equipment sum in oil refining and chemical plant installations, and investment accounts for the 30-45% of gross investment.Along with the development of power-saving technology, the recovery that utilizes heat exchanger to carry out high temperature, low temperature heat energy has brought remarkable economic efficiency in recent years.At present, in heat transmission equipment, the use amount maximum be shell-and-tube heat exchanger.Development along with petroleum industry and chemical industry, the shell-and-tube heat exchanger that various harsh conditions are used is more and more, for example oil refining hydrocracking, kerosene hydrogenation, gasoline, diesel hydrogenation and lube oil hydrogenation, catalytic reforming, hydrofinishing etc., cracking of ethylene in chemical industry, ethylbenzene dehydrogenation, high-pressure and low-pressure polymerization, ammonia synthesis in chemical fertilizer, conversion of natural gas or the like, heat exchanger need bear pressure from the vacuum to 35MPa, the harsh environment for use of temperature up to 700～900 ℃.
Entered since 21 century, along with the high speed development that device maximizes, the use of large heat exchanger more and more extensively, more and more frequent, technical difficulty reliability requirement more and more big, equipment is more and more high.How to ensure the heat exchange effect, improve the thermal efficiency, improve the reliability of equipment, become crucial research topic, the various large heat exchanger technology that are applied under the special process condition emerge in an endless stream, and are too numerous to enumerate.
Two kinds of the most frequently used in shell-and-tube heat exchanger heat exchangers are fixed tube-sheet exchanger and movable tube sheets heat exchanger.The technology of " chemical process design manual " 5-351 page or leaf, 5-357 page or leaf and Chinese patent application 01131478.8 patent disclosure of writing as Sinopec Group Shanghai Engineering Co., Ltd..Because heat exchanger tube side and shell-side fluid are carried out heat exchange, certainly exist temperature difference, when temperature difference greatly when surpassing the temperature stress that material can bear, just must adopt the engineering measure of eliminating expansion.In fixed tube-sheet exchanger, owing to the two ends tube sheet is fixed, so expansion joint can only be set on housing, when elongation takes place or shortens in tube bank, can compensate by the elongation and the shortening of expansion joint, thereby do not leak between guarantee tube side and the shell side, guarantee basic heat exchange effect.In movable tube sheets heat exchanger, there is not expansion joint on the housing, so tube side one end adopts fixed tube sheet, the other end adopts slip tube sheet (promptly raising the nose above water to breathe), tube bank can extend in housing and shorten freely, but this measure has solved the problem that expands, and is inevitable by having brought the another one problem, i.e. fluid sealing problem between tube side and the shell side.For head it off, method commonly used is to adopt the packing box seal structure, owing to adopt hermetically-sealed construction, leakage must be arranged, and is controlled within the acceptable scope so be merely able to guarantee the amount of leaking, and for example is not more than 5% of total flow.
At this two classes heat exchanger, in fixed tube-sheet exchanger and the movable tube sheets heat exchanger, usually fixed tube-sheet exchanger only is used for horizontal, because the shearing force when the vertical heat exchanger expansion joint can't bear the earthquake generation, and when being designed to bear earthquake shearing power, again because the expansion that rigidity and intensity almost lose; And horizontal equipment can bear earthquake shearing power.But in maximization is on interior pressure shell body expansion joint to be set, and does not still accept for numerous engineers and technicians.In movable tube sheets heat exchanger, when employing was vertical, stuffing-box can keep good stress, and certain circumferential uniformity is arranged, and can guarantee that the amount of leaking is controlled within the acceptable scope.But when employing is horizontal, as shown in Figure 2, packing box seal is in a kind of state of circumferential discontinuity equalization, because the deadweight of floating tubesheet and tube bank, make the filler of below be in the state that compresses more relatively, the filler of top then is in lax relatively state, it almost is inevitable in view of this leaking, especially after intensification cooling operation repeatedly, will inevitably bring considerable leakage rate, thereby had influence on the normal stable operation of device, perhaps caused unnecessary energy, the loss of material.For example on the ethyl benzene dehydrogenation preparation of styrene device, as " petrochemical equipment technology " 2000 21 volumes 5 phases report of the 6th page, a horizontal floating head type stuffing-box heat exchanger is used for the ethylbenzene dehydrogenation second reactor outlet high-temperature material waste heat ethylbenzene dehydrogenation first Reactor inlet material, the hot fluid temperature walk the tube side temperature from 560-580 ℃ of heats cold fluid temperature reduction to 320-360 ℃, cold fluid is walked the shell side temperature and is heated to 500 ℃ from about 100 ℃, shell journey temperature difference is bigger, tube bank taking place time and again damage, causes heat exchange equipment to lose efficacy.Leakage accident takes place time and again, cause reactor efficiency seriously to descend, up to keeping normal production.Two class accidents cause repeatedly is forced to stop, and becomes the bottleneck that restriction is produced.
Summary of the invention
The objective of the invention is to propose a kind of shell-and-tube heat exchanger that has sliding guiding support and inner expansion joint,, satisfy the industrial department needs to overcome the above-mentioned defective that prior art exists.
The shell-and-tube heat exchanger that has sliding guiding support and inner expansion joint of the present invention comprises housing, tube bank, fixed tube sheet, floating tubesheet, end socket, expansion joint and sliding guiding support spare;
One end of said tube bank is connected with fixed tube sheet, the other end is connected with floating tubesheet, fixed tube sheet is fixed on an end of housing, sliding guiding support spare is bearing in the below of floating tubesheet, and end socket is arranged on the two ends of housing, one end of expansion joint is connected with the inwall of end socket, the other end is connected with floating tubesheet, and the two ends of housing are provided with import and the outlet of fluid A, and end socket is provided with import and the outlet of fluid B;
The shell-and-tube heat exchanger that has sliding guiding support and inner expansion joint of the present invention, can avoid the leakage of fluid between tube side and the shell side reliably, the tube side that guarantees heat exchanger simultaneously is free to expand and shorten, thereby the thermal stress that the temperature difference that overcomes tube side and shell-side fluid is brought, the reliability of assurance heat exchanger.Heat exchanger of the present invention is specially adapted to heat exchange and the serious occasion of other leakage contributions between product and the reactant.Significantly improve the reliability of equipment, improved productivity effect.
Fig. 1 is the structural representation that has the shell-and-tube heat exchanger of sliding guiding support and inner expansion joint.
Fig. 2 is the A-A phase schematic diagram among Fig. 2.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the shell-and-tube heat exchanger that has sliding guiding support and inner expansion joint of the present invention comprises: housing 1, tube bank 2, fixed tube sheet 3, floating tubesheet 4, end socket 5, expansion joint 6 and sliding guiding support spare 7;
One end of said tube bank 2 is connected with fixed tube sheet 3, the other end is connected with floating tubesheet 4, fixed tube sheet 3 is fixed on an end of housing 1, and sliding guiding support spare 8 is bearing in the below of floating tubesheet 4, the elongation and the shortening of guiding tube bank 2, end socket 5 is arranged on the two ends of housing 1,, an end of expansion joint 6 is connected with the inwall of end socket 5, and the other end is connected with floating tubesheet 4, the two ends of housing 1 are provided with import 101 and the outlet 102 of fluid A, and end socket 5 is provided with import 501 and the outlet 502 of fluid B;
Preferably, sliding guiding support spare 8 is pressed center line to becoming to arrange that be arranged in simultaneously below the heat exchanger central horizontal face, to play effective supporting, quantity is 2～8.
Said expansion joint 6 can adopt the commercially available universal product.
Claims (3)
1. the shell-and-tube heat exchanger that has sliding guiding support and inner expansion joint comprises housing (1), tube bank (2), fixed tube sheet (3), floating tubesheet (4) and end socket (5), it is characterized in that, also comprises expansion joint (6) and sliding guiding support spare (7);
One end of said tube bank (2) is connected with fixed tube sheet (3), the other end is connected with floating tubesheet (4), fixed tube sheet (3) is fixed on an end of housing (1), sliding guiding support spare (8) is bearing in the below of floating tubesheet (4), end socket (5) is arranged on the two ends of housing (1), one end of expansion joint (6) is connected with the inwall of end socket (5), the other end is connected with floating tubesheet (4), the two ends of housing (1) are provided with import (101) and the outlet (102) of fluid A, and end socket (5) is provided with import (501) and the outlet (502) of fluid (B).
2. the shell-and-tube heat exchanger that has sliding guiding support and inner expansion joint according to claim 1 is characterized in that, sliding guiding support spare (8) is pressed center line to becoming to arrange, is arranged in simultaneously below the heat exchanger central horizontal face.
3. the shell-and-tube heat exchanger that has sliding guiding support and inner expansion joint according to claim 1 and 2 is characterized in that, sliding guiding support spare (8) quantity is 2～8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710043304A CN101086436B (en) | 2007-07-03 | 2007-07-03 | Shell-and-tube heat exchanger with sliding guiding support and inner expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710043304A CN101086436B (en) | 2007-07-03 | 2007-07-03 | Shell-and-tube heat exchanger with sliding guiding support and inner expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101086436A true CN101086436A (en) | 2007-12-12 |
| CN101086436B CN101086436B (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710043304A Active CN101086436B (en) | 2007-07-03 | 2007-07-03 | Shell-and-tube heat exchanger with sliding guiding support and inner expansion joint |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338572A (en) * | 2010-07-26 | 2012-02-01 | 济南西斯普换热***有限公司 | Sterile dual-tubeplate shell-and-tube heat exchanger |
| CN102889802A (en) * | 2012-10-24 | 2013-01-23 | 无锡市通和工机有限公司 | Tube-type heat exchanger |
| CN105605947A (en) * | 2016-03-07 | 2016-05-25 | 西安交通大学 | Fluorine plastic tubular heat exchanger capable of being horizontally arranged |
| CN109798789A (en) * | 2019-03-12 | 2019-05-24 | 上海发电设备成套设计研究院有限责任公司 | A kind of high temperature and pressure heat exchanger and its working method |
| CN110220400A (en) * | 2019-05-17 | 2019-09-10 | 天津华赛尔传热设备有限公司 | A kind of full-welding plate-type gas-gas heat exchanger |
| CN110619141A (en) * | 2019-07-24 | 2019-12-27 | 中国特种设备检测研究院 | Calculation method for tube plate and tube bundle of floating head heat exchanger |
| CN111811167A (en) * | 2020-06-23 | 2020-10-23 | 倪浩 | Industrial evaporative condenser |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1326024A (en) * | 1969-11-19 | 1973-08-08 | Fisons Ltd | Heat exchangers |
| US3907030A (en) * | 1970-04-21 | 1975-09-23 | Serck Industries Ltd | Tubular heat exchangers |
| CN2031904U (en) * | 1988-03-23 | 1989-02-01 | 国家机械工业委员会合肥通用机械研究所 | Floating head type heat exchanger |
| CN2136971Y (en) * | 1992-09-14 | 1993-06-23 | 济南市压力容器厂 | Efficient floating head water-water heat exchanger |
| CN2384194Y (en) * | 1999-09-01 | 2000-06-21 | 南海市桂城宝峰胜高新科技开发有限公司 | Double float tube sheet heat exchanger |
| US6206086B1 (en) * | 2000-02-21 | 2001-03-27 | R. P. Adams Co., Inc. | Multi-pass tube side heat exchanger with removable bundle |
| CN2856907Y (en) * | 2005-11-22 | 2007-01-10 | 淄博创尔沃中央空调有限公司 | External pipe condensing iso-flow rate steam-liquid heat exchanger |
-
2007
- 2007-07-03 CN CN200710043304A patent/CN101086436B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338572A (en) * | 2010-07-26 | 2012-02-01 | 济南西斯普换热***有限公司 | Sterile dual-tubeplate shell-and-tube heat exchanger |
| CN102889802A (en) * | 2012-10-24 | 2013-01-23 | 无锡市通和工机有限公司 | Tube-type heat exchanger |
| CN105605947A (en) * | 2016-03-07 | 2016-05-25 | 西安交通大学 | Fluorine plastic tubular heat exchanger capable of being horizontally arranged |
| CN105605947B (en) * | 2016-03-07 | 2017-06-20 | 西安交通大学 | It is a kind of can horizontal positioned fluoroplastics pipe heat exchanger |
| CN109798789A (en) * | 2019-03-12 | 2019-05-24 | 上海发电设备成套设计研究院有限责任公司 | A kind of high temperature and pressure heat exchanger and its working method |
| CN110220400A (en) * | 2019-05-17 | 2019-09-10 | 天津华赛尔传热设备有限公司 | A kind of full-welding plate-type gas-gas heat exchanger |
| CN110220400B (en) * | 2019-05-17 | 2024-03-29 | 天津华赛尔传热设备有限公司 | All-welded plate type gas-gas heat exchanger |
| CN110619141A (en) * | 2019-07-24 | 2019-12-27 | 中国特种设备检测研究院 | Calculation method for tube plate and tube bundle of floating head heat exchanger |
| CN110619141B (en) * | 2019-07-24 | 2021-09-07 | 中国特种设备检测研究院 | Calculation method for tube plate and tube bundle of floating head heat exchanger |
| CN111811167A (en) * | 2020-06-23 | 2020-10-23 | 倪浩 | Industrial evaporative condenser |
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| Publication number | Publication date |
|---|---|
| CN101086436B (en) | 2010-05-19 |
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Effective date of registration: 20180423 Address after: 213000 room 398-1, No. 1718 middle Tongjiang Road, Xinbei District, Jiangsu, Changzhou Patentee after: Changzhou Ruihua chemical engineering Limited by Share Ltd Address before: 201102 602, room 41, Lane 1458, long Ming Road, Minhang District, Shanghai. Co-patentee before: Changzhou Ruihua Chemical Engineering Technology Co., Ltd. Patentee before: Xu Zhigang |